Is it possible to escape from a wall of stone spell on the turn it is cast by flying?

The spell wall of stone allows those that might be trapped by it a chance to escape during the action in which it is ‘springing into existence’.

If a creature would be surrounded on all sides by the wall (or the wall and another solid surface), that creature can make a Dexterity saving throw. On a success, it can use its reaction to move up to its speed so that it is no longer enclosed by the wall.

Consider a caster making a wall with a roof to enclose a creature with flying movement capability.

Suppose the horizontal distance from the creature to any point outside the wall is greater than its speed so that even a successful Dex save will not allow it to escape enclosure.

Further suppose that because the wall is wider and longer than it is high, the creature is capable of moving outside the wall vertically, if it is allowed to use its flying speed.

Does "its speed" in the spell description include flying speed?

It seems common sense that if a flying creature could walk out of the area enclosed by the wall as a reaction, it could also fly out of the area, but does RAW allow this? If I understand correctly, using "speed" does not subsume all forms of speed, but means walking speed only, sensu stricto.

"Speed" (PHB) (emphasis mine)

Every character and monster has a speed, which is the distance in feet that the character or monster can walk in 1 round.

"Speed" (MM 8) (emphasis mine)

SPEED A monster’s speed tells you how far it can move on its turn. For more information on speed, see the Player’s Handbook.
All creatures have a walking speed, simply called the monster’s speed. Creatures that have no form of ground-based locomotion have a walking speed of 0 feet.
Some creatures have one or more of the following additional movement modes
FLY
A monster that has a flying speed can use all or part of its movement to fly.

If the description of the wall of stone spell allows only a creature’s speed to be used in its reaction, does "speed" mean only its walking speed since it is not otherwise specified? Although the creature has a flying speed, this is an ‘additional movement mode’ that is not designated by the spell’s permitted use of speed?

Suppose that flying speed may be used to escape the wall. The trigger for permitting the creature’s reactive movement is it being "surrounded on all sides" [sic]. If not surrounded, then, it appears that no reaction is permitted. Thus, if flying movement is permitted, does making the wall of stone appear without a roof mean that the creature is not surrounded by the wall, and thus is not permitted its reaction to attempt to escape?

Of course, without a roof the creature could then fly out on its next turn, but a lot could happen between the caster’s turn and the creature’s turn. Interestingly, if flying movement was a permitted form of reaction, the caster could then make a much smaller wall to still enclose the creature. The horizontal distance to the walls could now be made within the distance the creature could walk, and it would still not be allowed a reaction, since leaving off the roof would mean that it was not surrounded.

Is it possible to escape a roofed wall of stone on the turn it is cast by flying?
If so, can this escape be prevented by casting the wall without a roof?

Magic stone and thrown weapon fighting dd 5e tashas

I am a ranger with multiattack and thrown weapon fighting. I have a sack (homebrew) that lets me draw and throw a magic stone (flavoured as a turnip). I think i have established that i would have three attacks (multiattack and bonus) . thrown weapon fighting lets me draw as part of the attack. my question is . do i add the usual 1d6+wisdom modifier damage on the offhand throw? or is it just 1d6? the cantrip is cast on the stone. im unsure. essentially , if someone throws the stone with the offhand does it still hit with the modifier damage?

Stone Shape: can the stone extend past the original affected area?

The spell Stone Shape allows the caster to reshape a stone object or section of stone:

You touch a stone object of Medium size or smaller or a section of stone no more than 5 feet in any dimension and form it into any shape that suits your purpose.

Can the reshaped stone extends past the original affected area?

For example, would it be possible to raise a stone pillar from the ground using this spell, or extend a stone wall into a ramp?

Magic Stone + Enlarge [duplicate]

Can a thrown magic pebble be a target to the enlarge spell? For that matter, can anything from an arrow to a hurled table become enlarged while in mid-air and if so how would you suggest fantasy physics would work on this?

The enlarge spell states that the target doubles in all sizes but the weight is times eight. Would the (stone, for example) maintain its velocity and hit the target with 8x its weight? We all know that F = m*a.
How would you suggest to handle this DMG wise?

As always thanks in advance my fellow Dungeoneers.

Does Flesh to Stone count the first saving throw?

Flesh to Stone states:

You attempt to turn one creature that you can see within range into stone. If the target’s body is made of flesh, the creature must make a Constitution saving throw. On a failed save, it is restrained as its flesh begins to harden. On a successful save, the creature isn’t affected.

A creature restrained by this spell must make another Constitution saving throw at the end of each of its turns. If it successfully saves against this spell three times, the spell ends. If it fails its saves three times, it is turned to stone and subjected to the petrified condition for the duration.

My reading of this is that the initial save against the spell counts as one of the failed saves so if the target failed an additional two saves it would be petrified. Is this correct or is the correct interpretation that the target must fail three of the subsequent saves to be petrified?

Is Wall of Stone suppressed by Antimagic Field?

I noticed that the Wall of Stone spell includes this interesting tidbit in its first sentence (emphasized in bold):

A nonmagical wall of solid stone springs into existence at a point you choose within range.

The remainder of the spell mainly deals with how the wall can be shaped, and what happens to trapped creatures. The other relevant bit is the last paragraph:

If you maintain your concentration on this spell for its whole duration, the wall becomes permanent and can’t be dispelled. Otherwise, the wall disappears when the spell ends.

So, the wall of stone is nonmagical, but the spell can be dispelled, which causes the wall to disappear. So, is the wall magic or not? What happens if another wizard casts Antimagic Field around the wall? Will it suppress the spell within the region? And if so, what does that mean for the "nonmagical" wall created and maintained by the non-nonmagical spell?

And even though I’m pretty sure I know the answer for this one, I’ll ask it for the sake of completeness: what effect does Antimagic Field have on a wall of stone that has already been made permanent by concentrating on it for the full duration of the spell?

What is the widest gap that can be spanned by Wall of Stone?

One of the features of the Wall of Stone spell is to bridge a gap (emphasis added):

A nonmagical wall of solid stone springs into existence at a point you choose within range. The wall is 6 inches thick and is composed of ten 10-foot-by-10-foot panels. Each panel must be contiguous with at least one other panel. Alternatively, you can create 10-foot-by-20-foot panels that are only 3 inches thick.

[…]

The wall can have any shape you desire, though it can’t occupy the same space as a creature or object. The wall doesn’t need to be vertical or rest on any firm foundation. It must, however, merge with and be solidly supported by existing stone. Thus, you can use this spell to bridge a chasm or create a ramp.

If you create a span greater than 20 feet in length, you must halve the size of each panel to create supports. You can crudely shape the wall to create crenelations, battlements, and so on.

So, I want to bridge the longest possible gap using this spell. Obviously I will choose to use 10-foot-by-20-foot panels, connected lengthwise. However, I will need to "halve the size of each panel to create supports". So, do I end up with 10-foot-by-10-foot panels (for a total reach of 100 feet), or 5-foot-by-20-foot panels (for a narrower bridge reaching 200 feet)? Or something else? What is the longest gap I can bridge with these panels?

Abalative Armor and Stone Construct Interplay

Abalative Armor provides damage reduction 15/- at 10th level, once the infused item has prevented damage from a single attack even if not all the damage reduction is needed, the magic fades.

Stone Construct provides damage reduction 10/adamantine. Once the spell has prevented a total of 10 points of damage per artificer level you possess (maximum 150 points) it is discharged.

If a creature has damage reduction from more than one source, the two forms of damage reduction do not stack. Instead, the creature gets the benefit of the best damage reduction in a given situation.

My question is does the damage reduced by the Abalative Armor also reduce the total provided by Stone Construct?

Apologies if this question has been asked in the past by another.

How far away can stone shape affect stone?

Stone shape can affect an amount of stone up to 10 cubic feet + 1 cubic foot per level. If the shape you want to effect is narrow enough, you could get a lot of distance while staying under this volume. For example, a 10th level caster has a maximum of 100 cu. ft. Could such a caster touch the side of a mountain and bore an 8,000-foot-long hole through it if the hole was only 1.5 inches in diameter? The volume of this hole would be π(0.06252²)(8000) = ~98 cu. ft.³. What about reshaping a 4.5-foot cube of stone into a cylinder of similar dimensions?